package com.eobard.config.mp;

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.pagination.optimize.JsqlParserCountOptimize;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author Eobard_Thawne
 * @version 1.0
 * @date 2022/7/31 -19:12
 */
@Configuration
public class MPConfig {
    //分页bean
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求 默认false
        // paginationInterceptor.setOverflow(false);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        // paginationInterceptor.setLimit(500);
        // 开启 count 的 join 优化,只针对部分 left join
        paginationInterceptor.setCountSqlParser(new JsqlParserCountOptimize(true));
        return paginationInterceptor;
    }

//    // 新版MybatisPlus分页bean
//    @Bean
//    public MybatisPlusInterceptor mybatisPlusInterceptor() {
//        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
//        PaginationInnerInterceptor paginationInnerInterceptor =new PaginationInnerInterceptor(DbType.MYSQL);
//        paginationInnerInterceptor.setOverflow(true);//溢出后从第1页开始
//        //指定数据库类型
//        interceptor.addInnerInterceptor(paginationInnerInterceptor);
//        return interceptor;
//    }

}